The flyby is due to take place on New Year's Eve of 2018, but by the time the team receives the signal of confirmation it will be 2019. At the time of the flyby, MU69 will be 4.2 billion miles away from Earth. Because of this extreme distance it will take the signal from New Horizons 6.2 hours to reach Earth, and that's just one way. New Horizons will sweep past MU69 at a blistering 45,931 feet per second. During the flyby it’ll turn on its imaging instruments, RALPH and LORRI, as well as its UV imaging spectrometer, Alice, to gather data about MU69's surface composition, brightness and size. The details will help to complete the puzzle of the Kuiper Belt.